police. >> a developing story along the u.s.-mexico border. police have arrested two men with possible ties to the shooting death of a border patrol agent. no word on a motive in that attack. >> to an update to a story we brought you first on seven. the national park service has now drained the reflecting pool. this is less than two weeks after we discovered algae growing on the water. it is not supposed to happen after that multimillion-dollar renovation. we are on the national mall with where we go from here. >> the reflecting pool is now empty. workers are still here on the scene housing is down, making sure all the best analogy is god. it will be two or three weeks before it is refilled. this was touted as a landmark green project, no chemically treated city water. they have been shoveling and plowing, but it is only october. and there is no snow. >> it is unbelievable. >> a month after the rebuild reflecting pool was reopened, and two weeks after we read the first to show you the algae invasion the national park service has trained all 4 million gallons. officials blame it on not
